Table 3

Relation between propensity score and radiographic progression and disability

One additional erosion at 1 yearHAQ score ≥1 at 2 years
Propensity score quintileObserved probability (n/N)χ2 p levelObserved probability (n/N)χ2 p level
10.21 (28/135)0.750.35 (44/126)<0.0001
20.22 (29/133)0.24 (30/124)
30.24 (33/139)0.19 (24/129)
40.24 (33/138)0.16 (21/131)
50.18 (25/139)0.12 (16/130)
  • Quintile 1 represents patients with the lowest probability of being treated in accordance with the recommendations; quintile 5 represents patients with the highest probability of being treated in accordance with the recommendations, according to baseline characteristics.